Home / 807,487.20-1,211,230.80-274,831.20

Finding the Fourth Proportional to 807,487.20, 1,211,230.80 and 274,831.20

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Solution

The fourth proportional to 807,487.20, 1,211,230.80 and 274,831.20 is: 412,246.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,487.20 : 1,211,230.80 = 274,831.20 : x
  2. Step 2: Convert to fraction form
    807,487.20/1,211,230.80 = 274,831.20/x
  3. Step 3: Cross multiply
    807,487.20x = 1,211,230.80 × 274,831.20
  4. Step 4: Simplify right side
    807,487.20x = 332,884,014,240.96
  5. Step 5: Solve for x
    x = 332,884,014,240.96/807,487.20
  6. Step 6: Final answer
    x = 412,246.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.